Andy Wade wrote:

If all the outlet points are serving a single household then the bonding
is optional. The main purpose of earth bonding an aerial system is to
ensure safety in a distribution system serving more than one household -
e.g. in case your neighbour decides to connect the coax to the mains
(this used to happen frequently in the days of live-chassis TV sets with
faulty aerial isolators).

So if you've got neighbouring homes, with their TV signals coming from
separate aerials, but attached to the same metal mast up on the roof,
then earth bonding would be compulsory? That's never occurred to me...
what sort of bonding would be needed - what, where and how would it be
fitted?

(Sounds like an easier option might be a second mast!)

David